Hi,
I did exactly what is written here for all VMs
Enable copy and paste on VMware ESXi VMs – 4sysops
-------------------------------------------------------------------------------
Enable copy and paste for all VMs ^
You'll need to use a Secure Shell (SSH) client for this, and you'll have to enable SSH on the host. A free SSH client for Windows called PuTTY is well known. There are plenty of others, and you can also install one as an extension in your web browser.
Then simply log in to the ESX/ESXi host as a root user.
Open the /etc/vmware/config file using the vi editor. Navigate first to the right directory (cd /etc/vmware), then type "i" to switch to insert mode, and then enter this command:
Note: You should make a backup of the /etc/vmware/config file. You can do this with the command below after you go into the /etc/vmware folder:
This saves the original file as "config_old."
Once you have the backup of the original file, you can add these entries to the file:

Edit the config file
Save and close the file. We're done.
For the ESXi setting, you'll need to reboot the ESXi host for the values to take effect.
----------------------------------------------------------------------
These are the same changes reported by you.
In the end I restarted the host and it worked.
The reboot is necessary, did you restart the hosts ??
Alessandro Romeo